聚合金属酞菁仿生催化氧化燃油脱硫性能研究  

Property of metal polyphthalocyanine for biomimetic catalytic oxidation desulfurization of fuel

作　　者：张雨帆 谭阿敏 田敏[1] 张改[1] ZHANG Yu-fan;TAN A-min;TIAN Min;ZHANG Gai(School of Materials Science and Chemical Engineering,Xi'an Technological University,Xi'an 710021,China)

机构地区：[1]西安工业大学材料与化工学院,陕西西安710021

出　　处：《现代化工》2021年第7期118-121,127,共5页Modern Chemical Industry

基　　金：国家自然科学基金项目(21501139);陕西省自然科学基金项目(2020JM-563)。

摘　　要：采用水热技术制备了聚合金属酞菁脱硫催化剂(MPPcTc,M=Mn^(2+)、Fe^(2+)、Co^(2+)、Ni^(2+)、Cu^(2+)、Zn^(2+)),利用红外光谱仪和紫外-可见分光光度计对催化剂结构进行了表征。在自然光照下,以空气中的氧分子为氧化剂,建立仿生催化氧化燃油脱硫体系,评价了催化剂对模拟燃油中噻吩的脱除活性,探讨了酞菁环共轭结构对催化氧化脱硫性能的影响。结果表明,在常温、常压下催化氧化3 h后,噻吩脱除率最高可达94.17%,实现了深度脱硫;随着酞菁环共轭体系的增大,催化活性显著提高。Metal polyphthalocyanine complexes(MPPcTc,M=Mn^(2+),Fe^(2+),Co^(2+),Ni^(2+),Cu^(2+),Zn^(2+))are prepared by hydrothermal technology,and are characterized by IR and UV-Vis spectra.A biomimetic catalytic system for fuel desulfurization is established based on MPPcTc and molecular O2 under natural light.The activity of the catalyst for removing thiophene from simulated fuel is evaluated,and the influence of the conjugation structure of phthalocyanine ring on the catalytic oxidation desulfurization performance is discussed.Results show that the highest desulfurization rate of the catalyst to thiophene can reach above 94.17%after 3 hours of degradation at room temperature and atmospheric pressure,and the catalytic performance is promoted with the increase of conjugated system.

关 键 词：聚合金属酞菁 仿生催化 燃油脱硫 噻吩 

分 类 号：TQ613.5[化学工程—精细化工]